GCF of 90/40, 84/728, 885/385
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 90/40, 84/728, 885/385 i.e 3/40040 easily. The following is the detailed procedure to determine the greatest common factor of fractions 90/40, 84/728, 885/385.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 90/40,84/728,885/385?
Given fractions are 90/40,84/728,885/385
To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by
GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators
In the fractions 90/40,84/728,885/385, numerators are 90,84,885
Denominators are 40,728,385
The GCF of 90,84,885 is 3 .
LCM of 40,728,385 is 40040.
The greatest common factor of 90/40,84/728,885/385 = [GCF of 90,84,885]/[LCM of 40,728,385]= 3/40040
Therefore, the GCF of 90/40,84/728,885/385 is 3/40040.
To find the highest common factor of 90,84,885, we have to find the factors of both numbers and list the highest common factor.
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The factors of 885 are 1, 3, 5, 15, 59, 177, 295, 885
The HCF of 90,84,885 is 3.
Lets's calculate GCF of 90,84,885
| 3 | 90, 84, 885 |
| 30, 28, 295 |
∴ So the GCF of the given numbers is 3 = 3
Greatest Common Factor of 90,84,885 By Matching Biggest Common Factor Method
Now, list down the factors of 90
:1,2,3,5,6,9,10,15,18,30,45,90
Now, list down the factors of 84
:1,2,3,4,6,7,12,14,21,28,42,84
Now, list down the factors of 885
:1,3,5,15,59,177,295,885
Greatest Common Factor
We found the factors 90,84,885 . The biggest common factor number is the GCF number.
So the greatest common factor 90,84,885 is 3.
Lets's calculate LCM of 40,728,385
| 2 | 40, 728, 385 |
| 2 | 20, 364, 385 |
| 2 | 10, 182, 385 |
| 5 | 5, 91, 385 |
| 7 | 1, 91, 77 |
| 1, 13, 11 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 5 x 7 x 1 x 13 x 11 = 40040
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/40040
Therefore, the GCF of Fractions 90/40,84/728,885/385 is 3/40040
Least Common Multiple of 40,728,385 with GCF Formula
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 40,728,385 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(40,728,385) = 1
common factors(in case of two or more numbers have common factors) = 280
GCF(40,728,385) x common factors =1 x 280 = 280
LCM(40,728,385) = ( 40 × 728 × 385 ) / 280
LCM(40,728,385) = 11211200 / 280
LCM(40,728,385) = 40040
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FAQs on GCF of Fractions of 90/40, 84/728, 885/385
1. What is the HCF of 90,84,885?
The HCF of 90,84,885 is 3
2. What is the GCF of a fraction?
The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.
3. How to find GCF in Fractions?
Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.
4. What is the GCF of Fractions for 90/40, 84/728, 885/385?
Answer: GCF of Numerators as per given numbers 90/40, 84/728, 885/385 is
GCF of Numerators i.e. for 90,84,885 is 3
LCM of denominators i.e. for 40,728,385 is 40040.
Thus, GCF of Fractions is 3/40040.Finally, GCF of Fractions for 90/40, 84/728, 885/385 is 3/40040.